(19)

(11)

EP 2 771 312 A1

(12)

(43) Date of publication: 03.09.2014 Bulletin 2014/36 (21) Application number: 12799022.4 (22) Date of filing: 29.11.2012

(51) International Patent Classification (IPC):  C07C 233/18(2006.01) C07C 275/02(2006.01) (86) International application number: PCT/US2012/067098 (87) International publication number: WO 2013/082302 (06.06.2013 Gazette 2013/23)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 30.11.2011 US 201161565224 P (71) Applicant: ratiopharm GmbH 89079 Ulm (DE)	(72) Inventors: HAFERKAMP, Sven 41169 Monchengladbach (DE) BOESE, Roland 45326 Essen (DE) (74) Representative: Wong, Kit Yee  D Young & Co LLP 120 Holborn London EC1N 2DY London EC1N 2DY (GB)